@charset "utf-8";

.mid {
	width: 100vw;
	height: 100vh;
	display: flex;
	justify-content: center;
	align-items: center;
}

.joinpart {
	width: 1200px;
	height: 650px;
	margin: auto;
	display: flex;
	justify-content: center;
	background-image: url("../image/join.jpg");
	background-repeat: no-repeat;
	background-size: 1300px;
	overflow: hidden;
	opacity: 0.9;
	border-radius: 50px;
	animation: loadbac 1s linear;
	transition: 1s ease 0.2s;
}

.joinpart .left {
	width: 400px;
	height: 100%;
}

.joinpart .left .square {
	width: 250px;
	height: 250px;
	border: 5px solid rgb(183, 207, 226);
	margin: auto;
	margin-top: 200px;
	border-radius: 30%;
	animation: a1 3s infinite linear;
}

.left .square::before {
	content: "";
	width: 250px;
	height: 250px;
	transform: rotate(30deg);
	border: 5px solid rgb(183, 207, 226);
	border-radius: 40%;
	position: absolute;
	animation: a2 25s infinite linear;
}

.left .square::after {
	content: "";
	width: 250px;
	height: 250px;
	transform: rotate(60deg);
	border: 5px solid rgb(183, 207, 226);
	border-radius: 30%;
	position: absolute;
	animation: a2 60s infinite linear;
}

.left .tit {
	position: absolute;
	font-size: 2em;
	margin-left: 130px;
	margin-top: -170px;
	color: rgb(183, 207, 226);
	z-index: -10;
}

.left .square:hover {
	animation: a1 15s infinite linear;
}

.left .square:hover::before {
	animation: a2 80s infinite linear;
}

.left .square:hover::after {
	animation: a1 50s infinite linear;
}

.joinpart .right {
	width: 800px;
	height: 100%;
}

.joinpart .goal {
	color: rgb(206, 228, 238);
	width: 500px;
	margin: auto;
	display: flex;
	flex-direction: column;
}

.joinpart .goal h1 {
	font-size: 4em;
	font-weight: bolder;
	line-height: 200px;
}

.joinpart .goal p {
	word-wrap: break-word;
}

.meth {
	width: 500px;
	height: 100px;
	flex-direction: row;
	display: flex;
	justify-content: space-around;
	margin-top: 50px;
}

.meth .icon {
	width: 30px;
	height: 30px;
	background-size: cover;
	border-radius: 5px;
	background-repeat: no-repeat;
	background-position: center;
	transition: 0.4s ease 0s;
}

.meth .icon:hover {
	transform: scale(1.1);
	cursor: pointer;
}

.meth .qq {
	background-image: url("../image/qq.png");
	background-size: 25px;
}

.meth .vx {
	background-image: url("../image/vx.png");
}

.meth .bili {
	background-image: url("../image/bili.png");
	background-color: rgb(245, 128, 147);
}

.meth .gh {
	background-image: url("../image/github.png");
	background-size: 40px;
}

.icon ul {
	display: none;
	list-style: none;
	margin-top: 30px;
	width: 150px;
	margin-left: -80px;
	color: white;
	font-size: 14px;
}

.icon:hover ul {
	display: block;
	position: absolute;
}


@keyframes a1 {
	to {
		transform: rotate(360deg);
	}
}

@keyframes a2 {
	to {
		transform: rotate(-10800deg);
	}
}

@keyframes loadbac {
	0% {
		opacity: 0;
		margin-top: 100px;
	}

	100% {
		opacity: 1;
		margin-top: 50px;
	}
}
